On an average day of doing graphics work for investment bankers I would do six hours of brutal work and have two hours to read FR :)
But they knew about it and didn’t care.
They could NOT afford to be short people, just the opposite.
This sounds like a VERY different situation.
The real question is how much time wasted. If a project was not completed on time, you have a problem. Me, I might spend a few minutes on solitaire every now and then.